Remember that when you register for the conference, you will have also the option of registering to attend the workshop that will take place the day before (September 12th) about Open Science and replicability. You can find more information here
If you are an undergraduate, graduate or PhD student without external funding to attend the conference, you can apply to get a student bursary. After registering to the conference, send an email to email@example.com with the subject "Student bursaries", a certificate of your student status and a statement of your lack of external funding. Indicate as well how you will participate in the conference (attending, presenting a poster or presenting an oral communication). When the early registration period is over, you will receive an email with all the information regarding your application.